21301103144004 has 24 divisors (see below), whose sum is σ = 51305882842368. Its totient is φ = 6871323594720.

The previous prime is 21301103143951. The next prime is 21301103144011. The reversal of 21301103144004 is 40044130110312.

It is a super-2 number, since 2×21301103144004² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28630514607 + ... + 28630515350.

It is an arithmetic number, because the mean of its divisors is an integer number (2137745118432).

Almost surely, 2^{21301103144004} is an apocalyptic number.

It is an amenable number.

21301103144004 is an abundant number, since it is smaller than the sum of its proper divisors (30004779698364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21301103144004 is a wasteful number, since it uses less digits than its factorization.

21301103144004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57261029995 (or 57261029993 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 21301103144004 its reverse (40044130110312), we get a palindrome (61345233254316).

The spelling of 21301103144004 in words is "twenty-one trillion, three hundred one billion, one hundred three million, one hundred forty-four thousand, four".